Home / 28,517,160.80-42,786,238.80-9,348,543.20

Finding the Fourth Proportional to 28,517,160.80, 42,786,238.80 and 9,348,543.20

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Solution

The fourth proportional to 28,517,160.80, 42,786,238.80 and 9,348,543.20 is: 14,026,256.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,517,160.80 : 42,786,238.80 = 9,348,543.20 : x
  2. Step 2: Convert to fraction form
    28,517,160.80/42,786,238.80 = 9,348,543.20/x
  3. Step 3: Cross multiply
    28,517,160.80x = 42,786,238.80 × 9,348,543.20
  4. Step 4: Simplify right side
    28,517,160.80x = 399,989,001,787,316.12
  5. Step 5: Solve for x
    x = 399,989,001,787,316.12/28,517,160.80
  6. Step 6: Final answer
    x = 14,026,256.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.